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一种基于草酸根桥联的铜（II）一维聚合物链：有机染料的合成、结构及吸附

An Oxalato-Bridged Cu(II)-Based 1D Polymer Chain: Synthesis, Structure, and Adsorption of Organic Dyes.

作者信息

Munawar Fouzia, Khalid Muhammad, Imran Muhammad, Qasim Muhammad Naveed, Waseem Shazia, AlDamen Murad A, Ashfaq Muhammad, Imran Muhammad, Akhtar Muhammad Nadeem

机构信息

Department of Chemistry, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan 64200, Pakistan.

Division of Inorganic Chemistry, Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan.

出版信息

Polymers (Basel). 2024 Jun 19;16(12):1742. doi: 10.3390/polym16121742.

DOI:10.3390/polym16121742
PMID:38932091
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11207973/
Abstract

In the current research, we prepared a polymeric framework, {[Cu(CO)(CHN)]·HO·0.67(CHOH)]} () (where CO = oxalic acid; CHN = 2,2-bipyridine), and explored this compound for adsorption of methylene blue (MB) and methyl orange (MO). The crystal structure of the compound consists of a Cu(ox)(bpy) unit connected via oxalate to form a 1D polymeric chain. This polymeric chain has adsorption capacities of 194.0 and 167.3 mg/g for MB and MO, respectively. The removal rate is estimated to be 77.6% and 66.9% for MB and MO, respectively. The plausible mechanisms for adsorption are electrostatic, π-π interaction, and OH-π interaction for dye stickiness. The adsorbent surface exhibits a negative charge that produces the electrostatic interaction, resulting in excellent adsorption efficiency at pH 7 and 8. The pseudo-first-order kinetic model is selected for the adsorption of MB and MO on the adsorbent. The reported compound has remarkable efficiency for sorption of organic dyes and can be useful in wastewater treatment.

摘要

在当前的研究中，我们制备了一种聚合物框架{[Cu(CO)(CHN)]·HO·0.67(CHOH)]}（）（其中CO = 草酸；CHN = 2,2-联吡啶），并研究了该化合物对亚甲基蓝（MB）和甲基橙（MO）的吸附性能。该化合物的晶体结构由通过草酸盐连接的Cu(ox)(bpy)单元组成，形成一维聚合物链。该聚合物链对MB和MO的吸附容量分别为194.0和167.3 mg/g。MB和MO的去除率分别估计为77.6%和66.9%。吸附的可能机制是静电作用、π-π相互作用以及染料粘性的OH-π相互作用。吸附剂表面呈现负电荷，产生静电相互作用，在pH值为7和8时导致优异的吸附效率。选择伪一级动力学模型来描述MB和MO在吸附剂上的吸附过程。所报道的化合物对有机染料具有显著的吸附效率，可用于废水处理。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/20a9c19e2186/polymers-16-01742-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/08a0388bc6c0/polymers-16-01742-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/fc736c33adf3/polymers-16-01742-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/431456aa3122/polymers-16-01742-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/1fcec3439a7f/polymers-16-01742-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/815d81e48f3d/polymers-16-01742-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/cce7e373341f/polymers-16-01742-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/0692d65eca49/polymers-16-01742-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/23ea20e1765c/polymers-16-01742-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/8619311648cb/polymers-16-01742-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/20a9c19e2186/polymers-16-01742-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/08a0388bc6c0/polymers-16-01742-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/fc736c33adf3/polymers-16-01742-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/431456aa3122/polymers-16-01742-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/1fcec3439a7f/polymers-16-01742-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/815d81e48f3d/polymers-16-01742-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/cce7e373341f/polymers-16-01742-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/0692d65eca49/polymers-16-01742-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/23ea20e1765c/polymers-16-01742-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/8619311648cb/polymers-16-01742-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1aab/11207973/20a9c19e2186/polymers-16-01742-g009.jpg

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本文引用的文献

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